ptv clearance and lifters

[93GTosu]

well i'm trying to check the ptv clearance on my motor and the pushrod length but i'm having some troubles...

i understand that i need a solid lifter to check ptv clearance correct?? well the trick flow website tells me i can dissasemble one of my old lifters and make a solid one. How do i get it apart????? they also say to gring .020 off but i've heard not to grind anything from other sources...opinions? or can i buy a solid lifter for a few bucks and not have to bother???

i'm just adding P heads and intake to my stock motor. I'm keeping the stock rockers and cam (stock cam as far as i know) and i'm PRETTY sure i'm not gonna run into any problems but i'd rather NOT be the guy who doesn't bother and destroys something.

 

[jtfairlane]

How are you going to check PTV clearance and determine pushrod length at the same time?

You need to check PTV clearance with the correct length pushrods. Use a pushrod length checker to determine the right length pushrod to get correct valvetrain geometry, and then use THAT length pushrod to check PTV clearance.

 

[93GTosu]

How are you going to check PTV clearance and determine pushrod length at the same time?

You need to check PTV clearance with the correct length pushrods. Use a pushrod length checker to determine the right length pushrod to get correct valvetrain geometry, and then use THAT length pushrod to check PTV clearance.

sorry, i worded my post wrong....i'm not doing them both at the same time. Those two things are just at the top of my to-do list at the moment and i was wondering about the lifter. I do need a solid lifter to check clearance right?

 

[Marlboro_Man]

What I have found to be the easiest and most accurate way is by using a checking spring and a dial indicator. Or using feeler gauges along with the checking springs.

I've been through the whole solid lifter deal and honesty, **** the person who came up with that method!

Read this article and follow the instructions and you will have done it right!
http://*******.com/index.php/topic,57.0.html


The feeler guage method works but is a little clunky. I think the best way to do it is set them as a go no go. If you want .100 clearence then set the guages for that and make sure you can insert the guage at every check point.

I used a dial indicator but the rest of the proceedure is basically the same, light spring, roll the motor a bit, push down on the rocker and read the dial. I set the indicator up to read off the keepers. You're only checking where the piston is really close to TDC anyway so it's a pretty quick check.

For checking PR length you will need to use the checking spring. You can use your hydro roller lifter this way also.